Abstract: A method of producing an embossing cylinder having a predetermined embossed pattern thereon by applying a screen having a pattern inscribed therein to the surface of the cylinder, applying a hardenable material over the screen and pressing the hardenable material through the screen onto the surface of the cylinder, and removing the screen and allowing the hardenable material to harden to form an embossed pattern of hardened material on the surface of the cylinder.

Abstract: In a process for separating overlapping sheet metal panels, which are welded together by a series of spot-welds, the portion of each spot-weld in one of the panels is removed by drilling or milling after which pressure is applied by means of a tool, driven by a pneumatic hammer device, to the remaining portion of the spot-weld in the other panel forcing the other panel away from the one panel and separating of the panels without substantial damage to the panels. Alternatively, a hole saw may be used to separate the spot-weld from the one panel before pressure is applied to the spot-weld to separate the panels.

Abstract: A blowout system for ejection and discharge tubes of submarines is provided which permits an ejection of weapons from a torpedo tube, said weapons not having an own propulsion, and which prevents the intrusion of water after the blowout operation is terminated. The system is subsequently installable as a compact unit and has an outlet opening which is closed by a check valve. The outlet opening is continued by a buffer tube, a blowout valve arranged between a compressed-gas container and said buffer tube being provided for supplying said compressed gas.

Abstract: Successive rows of cigarettes delivered axially from a packing machine hopper outlet (12) are engaged by a cyclically-movable transfer member (24, 32, 425) which accelerates each row sideways and closes up spaces between cigarettes (C) before transferring the row to a conveyor (22) moving continuously at machine speed. The conveyor may be a drum (22) which transfers the cigarettes to a pocket conveyor (62) in which the cigarette bundles are formed, or it may be the pocket conveyor itself. The hopper may have several spaced outlets (12) so that rows may be supplied to the pocket conveyor (62) at spaced locations along its length to provide multi-layer bundles.

Abstract: An underground shock-resistant structure comprises a vaulted roof having a ring configuration as viewed from above and a ring-shaped base member, such as a flat floor, joined to the inner and outer edges of the vaulted roof. The external surface of the vaulted roof has a continuous convex configuration with a slowly varying radius of curvature and no change of signal such that over pressures and shockwaves striking the external surface of the vaulted roof apply compressive pressures to the vaulted roof and are deflected by the surface. Optionally, there may be one or more basement levels below the flat floor which are enclosed by inner and outer walls having a ring configuration which are joined to the inner and outer edges of the vaulted roof. In another option the flat floor may be replaced by an arch with its concavity facing upwards joined to the inner and outer edges of the vaulted roof.

Abstract: A wrapping machine, particularly for wrapping cigarette packets in wrapper film, includes a series of endless band conveyors (148, 152, 156, 166, 170) carrying pushers (150, 154, 158, 172) for moving successive packets (191) along a straight wrapping line. One of the pushers (158) is heated to seal a wrapper seam. Opposed heated band conveyors (166) simultaneously seal end folds of the wrapper. Packets are gripped between opposed conveyors (145, 148) immediately after intercepting a wrapper (100). Partially-wrapped packets are arranged to slide relative to surfaces (149, 153, 157, 180) to attain wrap tightness. Successive conveyors (e.g. 156, 170) are independently driven to allow phasing of the conveyors to vary the position at which packets are transferred between them.

Abstract: A bone biopsy instrument kit includes a hollow needle with an annular cutting edge which is rotated to cut a core of bone sample which is retained in the internal passage of the needle. A semi-circular portion of the needle wall is removable to withdraw the core sample without compressing or otherwise changing the consistency of the sample. The annular cutting edge has a sawtooth configuration with a side rake angle causing bone dust to be expelled radially without contaminating the core sample. An elongated obturator and an elongated trocar may be inserted through the needle to direct the annular cutting edge through tissue and to center and guide the instrument into the surface of the bone.

Abstract: Single cigarette rejection, particularly in a passage (10) between vanes (12) in a cigarette packing machine hopper, is performed by axial ejection of faulty cigarettes using suction generated by exhausting high pressure air adjacent an ejection aperture (22) in an end wall (16) of the passage. A short cylindrical casing (24) is located around the aperture (22) and defines a duct (28) through which the cigarette is ejected. The casing (24) includes an annular pressure chamber (32) and venturi orifice (34) for generating suction in the duct (28).

Abstract: A combination door and door frame primarily designed for blast shelters wherein the hinged door, which in locked position is designed to withstand external overpressures resulting from detonation of either nuclear or conventional weapons, swings inwardly when opened, thus avoiding the objection of outwardly opening doors which can be blocked by rubble, debris, soil, etc. projected by the force of the explosion piling up against the door resulting in the occupants becoming entombed in the shelter.

Abstract: An electro-acoustic connector for use with a musical instrument, such as a guitar, connected to an electronic amplifier and adapted to receive electrical signals from a transducer associated with the musical instrument and to receive and transmit soundwaves to a microphone incorporated therein. A three-position switch in the electro-acoustic connector controls the transmission to the amplifier of electrical signals from the transducer associated with the musical instrument and/or electrical signals from the microphone.

Abstract: Moving cigarettes are inspected, particularly in the passages (10, 30) between the vanes (12, 32) in a cigarette packing machine hopper, by an optical ends inspector (74, 76) which is switched by a position detector (84, 86) responding to passage of individual cigarettes. Faulty cigarettes are arrested by a suction aperture (26) or an arrestor are (122, 222) and subsequently rejected from the passage, either in an axial direction or sideways through an opening (116, 244) in the vane. The position detector (84, 86) may activate the suction or arm for arresting the faulty cigarette.

Abstract: A device for conveniently sampling and testing oil from the crankcase of an internal combustion engine comprises a tubular member, installed in the dipstick guide tube of the internal combustion engine and having a chamber above the guide tube inlet, and a vacuum filled sample receptacle having a seal which, when the receptacle is inserted in the chamber, is opened causing oil from the crankcase to be drawn into the receptacle. When the receptacle is withdrawn from the chamber the seal automatically closes, providing a convenient container for the oil sample to be sent to a laboratory for analysis. Optionally, to test the oil for acidity at the time the sample is received in the receptacle, the receptacle may contain a reagent which will indicate by color the pH of the oil sample.

Abstract: A frame comprising upper, lower, and side bars outlines a space to display a license plate. At least one of the bars, preferably the lower, has a depressed track in which a number of message elements or strip is carried which bear message indicia on its front surface. The track has upper and lower lips depending from and extending up from respectively the upper and lower margins of the track. A resilient, transparent cover slipped between the lips holds the message elements in place against the track back and with the indicia exposed to view. The lips may be frangmented into one or more sections, and only one lip may serve. The number of message elements may be reduced to a single, integral strip.

Abstract: An extensible handle bar for tools has on its outer tube a sleeve-shaped body made of thermoplastic material and provided with an external thread. The body has an extension provided with longitudinally extending slots and an external taper. A sleeve-shaped threaded nut is guided on the external thread of the body and has an internal taper which cooperates with the external taper of the extension. For improving the clamping of the inner tube of the handle bar in the sleeve-shaped body, the angle of inclination of the internal taper of the sleeve-shaped threaded nut is smaller than the angle of inclination of the external taper of the extension of the body provided with an external thread.

Abstract: A system for reproducing sound, particularly musical sound, giving enhanced pleasure to the listener. The system utilizes a pair of low frequency range speakers, a plurality of high frequency range speakers and may employ one or more mid frequency range speakers, all of which speakers are of conventional construction. These speakers are, however, disposed in a novel mechanical arrangement and electrically interconnected in a manner to emanate sound in essentially a non-directional manner. The listener thus perceives the sound to be emanating from the diemensional space surrounding the system, rather than from a single point or plane, and experiences the sound much as if he or she were in the same enclosure with live performers, rather than listening to a recording.

Abstract: An apparatus for wet cleaning in particular window panes includes an elongated carrier for a removable, fur-like cleaning body surrounding said carrier and a shaft-like handle being mounted at said carrier rectangularly thereto. The cleaning body has an outer cover with a longitudinal slot by means of which it can be applied to the carrier. This apparatus is superior as compared with the known apparatuses in that a holder is secured to the front end of the handle which has at each of its ends short threaded pins, two elongated arms being screwed onto the threaded pins which forms, together with the holder, the carrier for the cleaning body which is open at both ends. The longitudinal slot in the outer cover of the cleaning body is associated with the holder and comprises a length corresponding to that of the holder together with a threaded pin.

Abstract: A typing station at a remote location having a central processing unit and a terminal is interconnected with an information storage and retrieval system via a single telephone line. A typist at the remote location depresses a foot pedal associated with the central processing unit and controls shared transmission of audio messages and digital data between the typing station and the information storage and retrieval system. When the foot pedal is depressed, audio information is transmitted from the information storage and retrieval system at a central location to the typing station at the remote location. When the foot pedal is released, digital data defining previously transcribed audio information which is stored in the central processing unit is transmitted to the information storage and retrieval system via the single telephone line.

Abstract: A continuous line of laterally moving cigarettes is provided by extracting a row of cigarettes from an 80-column hopper 10, supporting the row by suction on the underside of a fluted beam 18 mounted on a pair of cranks 20, and cyclically rotating the cranks to bring the speed of the beam up to that of a fluted conveyor 32, where the row is deposited at the end of a previously transferred row. From the continuous line of cigarettes shorter rows are subsequently removed by known suction drums to form a succession of groups ready for packing on a continuous packer.